There is no such thing as “the best time for diabetic patients to walk”. It is generally recommended that diabetic patients walk 30 minutes to 1 hour after meals, not on an empty stomach or just after eating. After eating, food enters the stomach and starts to be digested, and walking immediately at this time may cause blood redistribution, which may affect the blood supply to the gastrointestinal tract, affecting the absorption of food, and causing stomach discomfort, indigestion and other symptoms. Walking 30 minutes to 1 hour after a meal when the food in the stomach has been digested to a certain extent will not cause the above symptoms. At the same time, 30 minutes to 1 hour after the meal when the blood sugar is at a higher level, this time exercise can directly consume blood sugar, slowing down the speed of postprandial blood sugar rise and peak. In addition, it is not recommended to walk in the fasting state, walking will consume calories, promote the decomposition of glucose, walking at this time is prone to cause hypoglycemic episodes. Diabetic patients who need to exercise should choose reasonable exercise methods and appropriate exercise time.